Unit converters

This section contains online unit converters for various physical quantities. All tools work directly in the browser, require no registration, and are available for free.

List of converters

• Weight and mass converter — general name for the international decimal system of units based on the metre and kilogram.
• Length and distance converter — international decimal system of units based on the metre as the main unit of length.
• Volume converter — international decimal system of units used in most countries.
• Area converter — international decimal system of area units based on the square metre.
• Speed converter — international decimal system of units used in most countries.
• Temperature converter — the most widespread temperature measurement system in the world, based on Celsius and Kelvin scales.
• Time converter — basic units of time based on the second.
• Pressure converter — basic pressure units of the metric system.
• Energy converter — basic energy units of the International System (SI) and electricity.
• Power converter — basic power units of the International System (SI).
• Angle converter — main units for measuring angles.
• Force converter — basic force units of the International System (SI).
• Density converter — basic density units of the International System (SI).
• Flow rate converter — basic volumetric flow units of the International System (SI).
• Viscosity converter — dynamic viscosity units.
• Illuminance and luminance converter — illuminance units.
• Information unit converter — units of information quantity based on the bit.
• Frequency converter — basic frequency units.
• Electrical quantities converter — electric charge units.